baber/WOPTO huggingface dataset:
Patent GB-995109-A (GB)
Title: Projector with disc-shaped carrier of images more particularly of numerals
IPC: G03B21/26
Filed: 1963-04-24
Abstract: 995,109. Projection apparatus. ZAVODY PRUMYSLOVE AUTOMATISACE NARODNI PODNIK. April 24, 1963 [April 25, 19621, No. 16089/63. Heading G2J. Disc-shaped image carrier 5 is mounted between objective 8 and condenser 7 on an arm 4 connected to an armature 2 having a permanent magnet 10, the armature being movable non-rotatably, for example on a diaphragm, on the optical axis surrounded by a ring of electromagnets 1, one for each image on carrier 5. The armature position and hence the image projected is changed by energizing another electromagnet to attract and the others to repel magnet 10.
Patent GB-1110342-A (GB)
Title: Sealing ring assemblies
Inventor: CROSS ROLAND CLAUDE
IPC: F16J15/00
Filed: 1966-04-13
Abstract: 1,110,342. Piston and joint-making packing; shaft seals. CROSS MANUFACTURING CO. (1938) Ltd. 18 Jan., 1967 [13 April, 1966], No. 16151/66. Headings F2B and F2T. Sealing means between coaxial cylindrical surfaces 2, 8 of two relatively static or relatively movable members, e.g. a piston 1 and a cylinder 7, comprises outer and inner rings 10 and 11, respectively, of circular or other smoothly curved section wire housed in mutual line contact in a groove 3 in one of the cylindrical surfaces, at least one ring 10 being in contact with one side 4 of the groove and another ring 11 being in contact with the other side 5 of the groove and at least one ring 10 engaging the other cylindrical surface 8. The rings 10, 11 are made of spring steel and split so that they tend to expand radially and also urge one another axially against the respective sides of the groove. In a modification, Fig. 2, two outer rings 10 are urged against the cylinder wall 8 and the sides of the groove by an inner ring 11. In a further modification, Fig. 3 (not shown), four outer and three inner rings are housed in the groove (3). When two or more inner or outer rings are used each ring may comprise a turn of a multi-coil helical ring.
Patent GB-991566-A (GB)
Title: Improvements in and relating to the electrolytic manufacture of metal alkyls
IPC: C25B3/13
Filed: 1962-04-27
Abstract: Alkyls of metals of Group II, IIIB, IVB, and VB of the Periodic Table, e.g. alkyls of Be, Mg, Zn, Hg, Al, In, Tl, Pb, Sn, Sb or Bi, are produced electrolytically by anodic dissolution of the metal using a Hg cathode, and an electrolyte consisting of or containing an alkali metal-boron complex compound of the general formula MBRm(OR1)n where M is an alkali metal, e.g. Na or K, R is an alkyl radical with at least 2 C atoms, R1 is an alkyl or cycloalkyl radical, m may be from 1 to 4, n may be from 0 to 3 and the sum of m+n is 4.  Mixtures of these B compounds may be used.  The electrolyte may also include an aluminium organic complex compound of the general formula MAlRp(OR11)q where M and R have the same meanings as above, R11 is an alkyl or cycloalkyl radical, p may be 3 or 4, q may be 0 or 1 and the sum of p+q is 4.  Mixtures of these Al compounds may be used.  The electrolyte may be fused, may be in aqueous solution, or dissolved in an organic solvent such as a limited range of aromatic hydrocarbons, tertiary amines or ethers.  Specific examples are diethyl or dibutyl ether, dialkyl glycol ethers, cyclic ethers of the type of tetrahydrofurane, dioxane, triethylamine and dialkyl aniline. The examples are for making the ethyl compounds of the following metals (1) Pb, (2) Sb, Sn, Hg, (3) Pb, (4) Zn, Tl, Sn, Sb or Bi, (5) Hg. Example 6 is for making Pb(C3H7)4 and Example 7 for making Mg(C2H5)2. During electrolysis the temperature is generally kept about 120  DEG C. The bath constituents resulting from the electrolysis may be separated by distillation. The used electrolytes may be regenerated. In Examples 1 and 2 a disc shaped anode is rotated 10 mms. above the Hg cathode surface. In Examples 3, 4, 6 and 7 a cell comprises a glass cylinder wherein a disc shaped anode is rotated 5 mms. above the Hg cathode surface.  The anode has paddles serving as a stirrer. A glass stirrer which stirs the Hg passes through a hollow axis of the first stirrer. The cell is provided with a reflux condenser.  In Example 5, the above apparatus is modified.  Anodic Hg is contained in a dish on the floor of the cell.  The stirrer rotates rapidly just above the Hg surface. Specifications 814,609, 848,364, 864,393, 864,394, 923,651, 943,723, 946,143, 946,686 and 955,254 are referred to.
Patent GB-382915-A (GB)
Title: Improvements in thermionic amplifiers
IPC: H03H7/01
Filed: 1932-06-08
Abstract: 382,915. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 8, 1932, No. 16190. Convention date, June 16, 1931. [Class 40 (v).] In a high or intermediate-frequency amplifier having tuned coupling transformers T1, T2, the tuned circuits of one or more transformers (e.g. T1) are coupled " critically " and are highly damped whereas the circuits of the other transformers (e.g. T2) are coupled " hypercritically " and are lightly damped. " Critical" coupling is that at which the resonance curve is just on the verge of sagging, while by " hypercritical " coupling is meant the coupling at which a double-humped resonance curve b, Fig. 2, is produced. The curve a is the resonance curve of transformer T1, the resultant c having the desired rectangular characteristic.
Patent GB-379403-A (GB)
Title: Improvements in or relating to mercury and other conducting liquid switches
IPC: H01H29/22
Filed: 1931-06-04
Abstract: 379,403. Mercury and other conducting-liquid switches. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, CLIFF, J. S., DAVIS, G. E., and WILSON, W., of General Electric Co., Witton, Birmingham. June 4, 1931, No. 16270. [Class 38 (v).] A conducting-liquid switch adapted to be mounted on the beam of an automatic weighing machine, closes a circuit momentarily when the beam, on being tilted one way, reaches a horizontal position but keeps the circuit open when the beam is tilted back again. Fig. 1 shows a plan view of one construction in which the mercury or other liquid lies in an endless channel 4 .. 7 the depth of which varies in such a manner that when the container is tilted one way mercury flows from a sump 6 into a sump 7 by way of the channel 4 thereby momentarily bridging contacts 8 in the channel, and when the container is tilted back again the mercury returns to the sump 6 by way of the channel 5. Fig. 5 shows a modification in which the mercury is contained in two cups 11, 12 separated by a partition 13 pierced with holes (not shown) at the bottom. Normally the container is tilted so that contact 9 only is immersed in mercury and a circuit between contacts 9, 10 is open. Tilting the container in a clockwise direction causes the mercury to bridge the contacts 9, 10 till the mercury has flowed through the holes into the cup 12. When the container is tilted back, the streams of mercury passing through the holes miss the contact 10 so that the circuit remains broken.
Patent GB-185248-A (GB)
Title: Improvements in aerial machines
IPC: B64C27/16
Filed: 1921-06-14
Abstract: 185,248. Brown, D. F. June 14, 1921. Aeroplanes; helicopters; propelling; planes, arrangement of; cars and cabins.-In an aerial machine of the type in which the planes are adapted to sustain the machine in flight in the manner of an aeroplane, and to be rotated collectivelv around a vertical axis to raise the machine in the manner of a helicopter, the planes 3 extend radially from the triangular structure 5, and an adjustable gondola 14, carrying a motor and propeller, is mounted between each pair of upper and lower planes. For raising the machine, the gondolas are adjusted simultaneously about vertical axes, from a handwheel in the car 2, so that the pull of the propellers is exerted tangentially and the machine rotates bodily about the centre of the car 2. The lower ring of the base 10 is mounted on ball bearings to facilitate this rotation on the ground. When the gondolas 14 are adjusted so that the propellers exert their pull along parallel lines, the machine moves forward as an aeroplane. The planes can be tilted from the car simultaneously about longitudinal axes to vary their incidence. Steering-surfaces 44 may be carried by one pair of planes. During the rotation of the machine the central portion of the floor of the car 2 supporting the aviator can be rotated in the opposite direction by a motor fitted with a brake under the aviator's control.
Patent GB-369804-A (GB)
Title: Improvement in cigar making machines
IPC: A24C1/20
Filed: 1931-06-05
Abstract: 369,804. Cigar-making machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Interna.tiona.l Cigar Machinery Co. ; 5520, 2nd Avenue, Brooklyn, New York, U.S.A.) June 5, 1931, No. 16499. [Class 130.] To prevent cigar bunches from adhering to the cavities of a bunch concentrator, the cavities are cleaned and moistened by a liquid sprayed into them. The cavities 26 are formed in an intermittently-rotating turret 27, and water is sprayed into them through a nozzle 23 in a pipe 19, the spray being regulated by a nut 24. The water is sprayed by a blast of air passing through a pipe 5 admitted by a valve 8 operated through a trip lever 9 from a cam 12 driven from the main driving-shaft. A safetyvalve 25 is provided in the pipe 5.
Patent GB-865771-A (GB)
Title: Polysiloxanes
IPC: C08G77/00
Filed: 1958-05-22
Abstract: In making linear siloxanes having different Si-bonded radicals from a mixture, containing a known equilibration catalyst, of a linear triorgano-siloxy chain-stopped diorganopolysiloxane and a readily hydrolysable organosilane containing, bonded to Si, either two radicals which are monovalent hydrocarbon or halohydrocarbon radicals, or one such hydrocarbon radical and a hydrogen atom (which is regarded as non-hydrolysable in the present invention), at least one of the non-hydrolysable radicals of the silane being different from those of the siloxane, water is added in small portions to the mixture, at an elevated temperature in the course of 1-2 hours, in such a quantity that at least 1 mol is used for each mol of the silane and, at most, so much that the activity of the catalyst is maintained, and the mixture is then heated to remove volatile reaction products.  In Examples (1, 2, 3) dimethylpolysiloxane was mixed with hexamethyldisiloxane and conc. H2SO4 and heated to 85 DEG C., and after adding (C6H5)2SiCl2 thereto, water was added in small portions in the course of 2 hours and the mixture kept at 110 DEG  to 120 DEG C. for a further 2 hours.  The acid product was then neutralized with Na2CO3, filtered and freed from volatiles; in further examples the same procedure was used but using (4) (C2H5)2 Si Cl2; (5) (C2h5) (Br C6H4) Si Cl2; (6) CH3(CH2=CH-) Si Cl2; (7) CH3.H.Si Cl2; (8) P2O5 as the catalyst (9, 10) (C6H5)2 Si (OC2H5)2. Uses: as heat transfer agents and for making heat stable greases.
Patent GB-635293-A (GB)
Title: Improvements in or relating to magnetic compasses
IPC: G01C17/00
Filed: 1947-06-23
Abstract: 635,293. Magnetic compasses. BROWNE & SON, Ltd., H., and KILROY, W. D. June 23, 1947, No. 16526. [Class 97 (ii)] A magnetic compass has a binnacle 1, Fig. 1, provided with slotted lugs 2, 3, Fig. 4, for engagement with projections 7, 8 on a bulkhead plate 6 which is secured in any desired position on a vessel, the binnacle 1 being removable from the plate 6 by disengaging the lugs from the projections leaving the plate in position. Preferably, the slots 2, 3 are keyhole shaped and locking means 10 are provided to fasten the binnacle in position. To facilitate engagement of the lug slots 2, 3 with the projections 7, 8 the lugs are notched at 12, the notches coacting with pins 11 on the plate 6 to indicate when the larger portion of the keyholed slots is in position to engage the projections 7, 8. The binnacle may be constructed in two portions, the lower portion being provided with the lugs and thereby attached to the plate and containing the compass and the upper part which can be rotated relatively to the lower containing an electric lamp 20 and a viewing window 17. To facilitate reading in the alternative positions of the compass on the vessel, two lubber lines spaced 180 degrees apart may be provided, and the lubber lines may be U-shaped, 30, Fig. 5, or comprise a single wire 31 closely adjacent to a mark 33 painted on the bowl 29 to avoid parallax. The compass card 24 is mounted on a hard pivot tip 25 soldered to a spiral spring 26 fixed at its base to a supporting stem 27 having an adjustable screw element 28 securing the stem to the base of the bowl 29. The lamp 20 is mounted in a strip metal holder 20a which is pivoted to the binnacle casing by a pin 21 projecting through the casing. Rotation of the holder by means of the projecting pin enables the amount of illumination falling on the compass card to be varied and in the lamp position 20A the metal contact strip 19a rides off the battery terminal 19b so that the lamp is switched off.
Patent GB-300253-A (GB)
Title: Improvements in razors with removable blades
IPC: B26B21/10
Filed: 1928-06-08
Abstract: 300,253. Rosenbaum, W. Nov. 11, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Razors, safety, are provided with magazines for spare blades. In a form shown in Figs. 1, 2, and 4, this magazine is in the operative end a of the razor. A pack of blades f, Fig. 2, is introduced by way of a removable cap v, Fig. 1, and is held between walls i', i<2> and against a wall l by springs k. A projecting operative blade h is held or clamped by turning an eccentric t from a milled head u. This acts by deflecting the wall l so as to jam the blade h against rigid wall n and tongue s. The guard comprises end lugs q, Fig. 4, between which the cutting edge of blade h is free to give. On releasing clamp t, a used blade h falls out. An ejector g is withdrawn until it engages behind one of the pack f, and is again thrust in, bringing a fresh blade to operative position. In a form shown in Figs. 7 and 8, the guard c' is fixed in line with handle a<1>, which is hollow to store spare blades. A clamp bar g<1> is hinged in a plane at right angles to the blade. A blade e<1>, Fig. 9, with two perforations is fitted over two projections f<1> on the guard c<1>, and the bar g<1> is closed down. A conical ferrule i is then screwed upon parts h<1> drawing them together so as to clamp the blade adjustably. Teeth j<1> on bar g<1> are shorter than teeth d<1> on guard c<1>. A form is also described. in which a clamping plate with a straight edge binges about the end of the guard in the plane of the blade. In a form shown in Figs. 11 and 12, a blade n<1> taken from hollow handle all is fitted by slipping its ends under two guide lugs o<1> on a guard holder l<1> with teeth m<1>. It is secured by a stud p<1> passing through a notch in the blade.
Patent GB-427932-A (GB)
Title: Improvements in weighing machines
IPC: G01G23/00
Filed: 1934-06-05
Abstract: 427,932. Weighing-apparatus. IONGH, J. H. DE, 19A, Iaan van Meerdevoort, The Hague. June 5, 1934, No. 16726. [Class 143] A weighing-machine comprises an hydraulic servomotor for the actuation of a sliding poise weight, the distributing member of the servomotor being connected to a moving part of the weighing machine in such a manner that the poise is automatically adjusted in either direction to bring the machine into equilibrium. As shown in Fig. 1, the load is applied by a rod 2 to a beam 1 carrying an hydraulic cylinder 29 the piston rod of which bears a sliding weight 30. The ends of the cylinder are connected, by flexible pipes 27, 28, with the casing of a distributing member 7 which is coupled to the beam by a rod 6. When the beam tilts out of the equilibrium position the distributing member 7 is moved to admit pressure liquid from a pipe 12 to one side or the other of the piston 9 until equilibrium is restored. A rack 31 and pinion actuate a weight-indicating counter 33. Springs 39, 40 assist in moving the beam to equilibrium position. In a modification, Fig. 2, tha distributing member is actuated, within the limits of stops 74, 75, by means of a rod 77 frictionally engaging a bell-crank lever 72.
Patent GB-893849-A (GB)
Title: Improvements relating to photosensitive elements
Inventor: FOCHS PETER DEREK
IPC: H01L31/08
Filed: 1959-05-15
Abstract: 893,849. Photosensitive devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 25, 1960 [May 15, 1959], No. 16785/59. Class 37. A method of manufacturing photo-sensitive elements comprises inserting into a container 1, e.g. of silica glass, a charge 2 of a material which in its crystalline form is photo-sensitive, e.g. cadmium sulphide, together with a gas, e.g. H2S. The end of the container containing the charge is placed in a furnace or R.F. heater 4 and the charge vaporized, the other end of the container being cooled by locating it outside the furnace. The vapour condenses on the cooled surface to form a crystalline substrate 6 and the layer is extended by slowly pulling the container from the oven by means of carriage 8 and ram 9. Photo-sensitive materials suggested are the zinc and cadmium, sulphides and selenides. In an alternative arrangement the charge of photo-sensitive material is supported inside a silica tube in such a way that the tube may be moved relative to the charge which remains in the same position relative to the furnace.
Patent GB-218830-A (GB)
Title: Machine for transferring dough in bakery machine equipments
IPC: A21C9/08
Filed: 1923-06-29
Abstract: 218,830. Melvin &. Sons, Ltd., T., and Paterson, J. C. June 29, 1923. Bread.-A machine particularly for transferring dough from one bakery machine to another, e.g. a handing-up or balling machine to a proving machine, comprises inclined shoots A, B, Fig. 1, the bottoms of which are formed by pivoted trap doors A1, B1. Arms A2 on the doors A1 are connected by links D to arms B2 on the corresponding doors B1 and the arms are so disposed with respect to the doors, that when the part A1 of one door is in position to close the bottom of the shoot, the part B1 of the corresponding door is upstanding and prevents the passage of a ball of dough down the shoot. The ball drops on to the part B3 of the door and turning it, is directed through a shoot-like guard F onto a conveyer F1. The closing of the door B1 effects the opening of the corresponding door A1. The balls pass into the machine through an aperture C and in passing to a shoot effect the turning of a spider C2- - C6. When the last ball for any shoot falls on to the spider, an arm provided with a detent engages the door 01 and swings it to the other side of the aperture C, so that the next ball is directed to the other shoot. The driving drums of the conveyers E1, F1 are geared to wheels G, Fig. 2, freely mounted on a shaft G1. The wheels G a.re driven intermittently and consecutively by fingers G2 projecting radially from a rotary shaft G3. Each wheel G has a non- return escapement, device H driven at the same speed as the shaft G3. In a modification the trap doors in each shoot may be connected to the doors in the same shoot instead of to the doors of the other shoot, and the door is swung by each ball. In this form the conveyers E1, F1 are replaced by a single wide conveyer L, Fig. 4, having projecting fingers L1 to carry the dough up the incline. A machine provided with one shoot only is shown in Fig. 5. In this form the doors A1 are connected by a link D which is joined to the end doors by arms A2 and operatively connected with the intermediate doors by fingers A4 which engage rollers A5 on the arms A2.
Patent GB-204371-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M11/10
Filed: 1922-06-19
Abstract: 204,371. Anderson, W. H. June 19, 1922. Spray carburettors.-In a carburettor of the kind comprising a longitudinal partition in the main air passage within which are a number of passages conveying a mixture of fuel and primary air, the outlets of the passages being controlled successively by the throttle valve, each passage is provided with a fuel nozzle and with a regulatable primary air inlet. As shown in Fig. 1, a longitudinal partition 10 is arranged between the main air inlet 6 and the throttle valve 7, and is provided with passages 21, 22 to which fuel is admitted through nozzles 23, 24 and air through inlets 25, 26 controlled by screws 27, 28. The passages 21, 22 are provided with outlets d - - j, cf which the outlet d supplies mixture for slow-running and remains open when the throttle valve is closed. The main body 5 of the carburettor is extended downwardly and is formed with a nozzle chamber 11 which is closed by a cover plate 12 provided with a lug 15 rotatably mounted upon a tube projecting from the float chamber 17. The main body 5 may thus be situated in a vertical horizontal, or inclined position. The tube is provided with a transverse fuel passage communicating with an annular groove opening into a fuel passage 16 in the plate 12. The choke tube 6 in the air inlet may be replaced bv one of different size. In a modification in which the air inlet is horizontal and the mixture outlet vertical, the partition 10 is provided with four vertical passages each communicating at the bottom with a regulatable air inlet and with a chamber containing a full nozzle. Two fuel passages lead from the float chamber, each supplying two of the fuel nozzles. In a further modification. the main body 5, Fig. 8, is horizontal and is provided on each side with an air inlet, the partition 10 being horizontal and provided with three mixture passages 59, two of which are branched. Fuel is supplied from the float chamber 17 to a chamber 51 in which is situated a holder 54 carrying three fuel nozzles 57. Each of the nozzles opens into a chamber to which a controlled amount of air is admitted through a passage 56 and which communicates with one of the passages 59 by a passage 58. The chamber 51 is rotatably secured in a socket 52 on the body 5 by a locking bolt 53.
Patent GB-136492-A (GB)
Title: Improvements in means for Promoting the Frictional Adhesion of Wheels of Travelling Machines or Instruments.
Inventor: VILLIERS EDWARD CECIL
IPC: B60L3/10
Filed: 1918-11-05
Abstract: 136,492. Villiers, E. C. Nov. 5, 1918. Course-recording apparatus. - In courserecorders and other travelling machines and instruments, a wheel C of magnetic material or thinly covered with non-magnetic material runs over the surface of a fixed plate 0, frictional engagement between the wheel and plate being promoted by the excitation of magnetic coils A stationary or turning with the wheel and arranged between pole-plates P with widened bases p closely approaching the plate O. Ball bearings are provided for the wheel spindle B. In course-recorders, the travelling part is arranged to mark a trail.